Patent US2561934A successfully refreshed from Google Patents.
Patent US2318683A successfully refreshed from Google Patents.
US2318683A
Expired / Lapsed
US
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Traction device
Assignee: HAROLD F WATSON
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Filing: 1941-08-20
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Granted: 1943-05-11
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Expires: 1961-08-20
Abstract
No abstract record available.
Inventors
- 👤 Camille P Galanot
- 👤 Jr James A Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:41
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/20; B62D55/205; B62D55/24; B62D55/253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-05-10 | 1946-11-09 | 1947-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-05-10 | 1950-11-09 | 1951-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-05-10 | 1954-11-09 | 1955-05-11 | $7700.00 | Window Closed / Lapsed |